function jValidation() {
    this.isIe = function() {
        var ie = false;
        if (navigator.appVersion.indexOf("MSIE") != -1) {
            ie = true;
        }
        return ie;
    }
    this.isEmail(email)
    {
        var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
        return reg.test(email);
    }
}
